Lubricating system



May 30, 1933. M. J. GOLDBERG LUBRIGATING SYSTEM 3 Sheets-Sheet 2 Filed July 1, 1927 G k a m g PM I x m i K k w 9 0M Z: m M m & V A w 5 Q w/ M w 9 0 3 V 0 9 0 0 w 7 w I M 1 8 o y 1 4 3 o 5 7 a 3 Z all m u, A&L m Z M \I/|\/\IL 0 M y 1933- M. J. GOLDBERG LUBRICATING SYSTEM 5 Sheets-Shet 5 Filed July 1, 1927 INVENTOR More/s 7 Gazzaaa TTORNEY Patented May 30, 1933 UNITED STATES PATENT FFEQE MORRIS J. GOLDBERG, or BELorr, WISCONSIN, .assienon T FAIRBANKS, Mouse &'00.,

or CHICAGO, ILLINOIS, A CORPORATION or runners LUBRICATING SYSTEM Application filed July 1, 1927.

This invention relates to an improved lubricating system, and especially to improvements in lubricating systems adapted to be used on stationary internal combustion engines of the solid injection type.

The subject matter of this application constitutes a continuation in part of that originally included in my co-pending application, Serial No. 103,034, filed April 19th, 1926.

An object of this invention is to produce a lubricating system, which may be supplied from pumps actuated by a common source of motion and which serves to supply both a force feed lubricator and a splash lubricating system, together with means for separating impurities, and partially purifying used lubricating oil.

A further object is an improved arrang ment of oil chambers through the lubricating system, with a view toward compactness of construction, reduction in the number of necessary oil conduits, simplicity of operating means, and a separation, so far as possible, of dirty and clean lubricant. A still further object is the construction of a complete lubricating system for engines of the described sort, which requires only a single pump for circulation of the oil; the

7 oil being pumped to the highest portion of the system, whence it is supplied by gravity to other containers or chambers.

Further objects of this invention will appear from the drawings and the following detailed description.

An examination of the drawings and accompanying description will show that the space relationship of the various containers, pumps, and conduits of the system, and also the mode of actuating the pump plungers, the disposition and type of valves, as well as the specific application of the subject matter described, may be varied substantially without departure from the scope and full intendment of this invention. The specific example illustrated and described is merely an illustrative and eXecut-ional embodiment of my invention, which is submitted in response to the statutory requirements relating to applications for Letters Patent.

In the drawings, Fig. 1 is a side elevation,

Serial No. 202,958.

1. Fig. 3 is an isometric view of a preferred 7 form of sumpbox or lubricating oil container, with oil connections. Fig. 4: is a sec tional elevation of the oil container shown in Fig. 3, the section being taken along a plane through the used-oil plunger axis, and lengthwise through the sump box.

In the description of the drawings, the reference characters used in my above copending application, Serial No. 103,034, of which the present case is a continuation in part, have been preserved, in order better to co-ordinatethe different parts or functions of the mechanism described in these cases.

Referring by numerals to the drawings, it will appear from the drawings, that a preferred arrangement of my lubrication system is centered about a combined governor case 22' and control housing 20. In the illustrated example, these two housings, which may be made integrally if preferred, are adapted to contain lubricating oil at a common level for the splash oiling of a governor assembly and pump mechanism, both substantially enclosed within these housings. This mechanism, like the lubricating system, is actuated froma shaft of the engine. This ispreferablya crank shaft or other engine shaft, such as appears at 23.

In the described example, an eccentric 103 is mounted on the shaft 23. This eccentric serves as a source of driving motion for pumping oil through the entirelubricating system in a manner which will hereinafter appear. I g

' Below housing 20 is preferably located a sump box or oil. container 124. In connectionwith the sump box, is a pair of pump plungers, 118 and 119. These are cross-connected by a pin 121 in such a manner that both areactuated simultaneously. In operative connectionwith the plungers 118 and 119 is a pump actuating rod 120. This rod passes through housing 20 by means of a tube or well 122, which has its top opening located above the normal oil level in reservoir 30, in housing 20. The pump rod is actuated by eccentric 103 carried on shaft 23, an eccentric strap 105, a rocker arm 104 pivoted on fixed pin 107 and connected to eccentric strap 105 by pin 106, and pin 109.

The pump plungers 118 and 119 preferably operate in a pump-body member 123, which is removably attached to lubricating oil container 124. It is advisable to employ some form of a leakage return passage for the purpose of collecting the oil which is carried up around the top of the plungers 118 and 119. A suggested form of such a passage is indicated at 118.

The sump box or container 124 is by preference divided into three compartments designated as 125, 126 and 127 respectively. This division is effected by means of partitions 128 and 129. The compartment is for the purpose of receiving used or dirty oil from the crank cases of the engine. The oil is conducted to compartment 125 from the engine by means of drain pipes 130, one for each crank case of the engine. The pipes or conduits 130 are each provided with a petcock 130. The use of the pet-cocks 130 is desirable for the purpose of controlling the outlet from the crank case drains. When compartment 125 is filled with oil, the fluid level rises up over partition 128, and drains down through a removable strainer 131, and thence into compartment 126. Any coarse sediment will tend to settle to the bottom of compartment 125. The dirty oil is further cleaned by passing through strainer 131. It is advisable to employ an overflow drain 132 in the compartment 125. The top of the overflow drain is located above the normal level of oil in compartment 125 and prevents the dirty oil from backing up through petcocks 130 and back to the crank cases of the engine, in case compartments 125 and 126 become filled for any reason. The dirty oil is preferably pumped out of compartment 126 through a removable strainer 133, and a suction valve 134. This valve may be of any suitable type. The oil is then drawn into pulsation chamber 135 of the pump. From this point the oil is forced out of chamber 135 through a suitable outlet valve 136 into a conduit 137, which directs the oil to some suitable reclaiming means, such as an oil filter (not shown). The clean oil fromthe reclaimed means preferably passes into clean oil compartment 127 through conduit 138.

i The clean oil is pumped out of compartment 127 through a removable strainer 139, a suction valve 139 and thence to a pulsation chamber 140, in which plunger 119 operates. The plunger 119 operatingin chamber 140 constitutes a clean oil pump. The plunger 118 and its corresponding chamber, function as a pump for the dirty or used oil.

From the clean oil pump, the oil proceeds through some suitable type of outlet valve, such as that shown at 141, thence into a conduit 142, which leads to a mechanical force feed lubricator 18. Container 124 is provided with a cover, preferably a removable lid, such as indicated at 144.

The lubricator 18 is a mechanical force feed lubricator of any reliable, known type, which serves the purpose of force-feeding clean oil to the various parts of the engine requiring lubricant under pressure, such as the bearings, rods, etc. Tubes 18 serve to connect the lubricator with the force-oiled engine parts. Themechanical lubricator 18 is driven through a lubricator drive rod 19, one end of which is engaged by the pin 109. As described above, the pin 109 is operatively connected with rocker 104, which is in turn actuated by the eccentric 103, and eccentric strap 105. Thus, it is seen that the force feed lubricator and the dirty and clean oil pumps may be actuated from the same eccentric or equivalent driving means, which may also serve to operate one or more fuel pumps, (see Fig. 1). In Fig. 2 is seen the internal structural arrangement of the housing 20, which is divided horizontally by a partition 7 3, forming a fuel compartment above the partition, and the lubricating compartment below; hereinbefore described. A fuel pump, having a pump body 91, and a plunger 90, is resident in the fuel compartment, and driven by a pin 109 operating through link 108 and pin 111 connected to the fuel pump plunger. In order effectively to prevent leakage of fuel into the lubricating compartment, an auxiliary partition 73 isprovided, through which the link 108 operates in actuating the plunger 90. The fuel pump proper may be of any suitable type, and serves to supply oil to the injection pumps, (not shown).

n excess of oil is preferably supplied to the lubricator 18. The overflow therefrom is directed downwardly through a conduit 143 into the reservoir 30, in housing 20. In this manner a plentiful supply of clean oil is regularly supplied to the housing 20 and the casing 22 in communication therewith. This oil received through conduit 143 provides for the splash lubrication of all the'engine accessories and control apparatus.

The reservoir 30 in housing 20 is provided with a constant level oil drain 31. This drain is, in turn, connected to clean oil com.- partment 127 in the sump box; or container 124. This arrangement insures that lubricator 18 and the reservoir 30 are provided with an ample supply of clean oil at all times, and that this oil is keptin continuous circulation, in a closed system.

The courseofthe lubricating oil through the various parts of the system, and the operation of such a system, will be at once apparent toth'ose skilled in the art, from the above detailed. description of parts. The lubrication of the control and governor housing by means of splash action, the constant level oil drain, and the circulation of oil through the sump box will be at once apparent from the description detailed above. The various bearing points of the. engine proper are oiled in a conventional manner by the force feed lubricator 18, through tubes 18, the lubricator regularly receiving an excess of oil through conduit or pipe 142. The excess of oil furnished the engine proper'is returned by gravity to the separate crank cases of the engine, whence it is returned to dirty oil compartment 125 in the sump box 124, as pointed out in detail above.

It is evident that the described lubricating system provides a complete means for circulating lubricating oil, which is simple and positive in its operation, and which insures an abundant supply of clean oil at all times.

JhlllllOIlgll my invention consists largely in the construction and arrangement of parts hereinbefore described and particularly pointed out in the claims, yet I do not limit my invention to the precise form or construction of parts shown or the several parts thereof, inasmuch as various alterations may be made without changing the scope of my in vention.

I claim as m invention:

1. In an internal combustion engine, a lubricatin system including a casing adapted to contain lubricating oil, a. shaft projecting into said casing, a lubricating oil container adapted to be supplied by gravity from said casing, a pump attached to said container, means associated with said shaft for driving said pump, said means being lubricated by oil within said casing, a pressure oiling device disposed above said casing, and arranged to be supplied from said pump, a member for actuating the oiling device through said pum i-driving means, extending thereto from said oiling device, and an overflow conduit from said device to said casing.

2. In an internal combustion engine, an oil circulating system including a casing adapted to contain lubricating oil, an engine shaft projecting into said casing, a lubricating oil container having separate compartments therein, one of such compartments arranged for gravity feed from said casing, a plurality of pumps attached to said container, and connected to separate compartments of the container, means for operating said pumps by said shaft, a force-oiling device and an enclosure therefor, disposed above said casing, the device being actuated by said pump operating means, and supplied by one of said pumps, the other of said pumps bein arranged for circulating oil from one compartment of the container, to another compart ment, anda'n overflow conduitconnected to supply oil from said enclosure to said casing.

3. In an oil circulating system for an internal combustion engine, a casing adapted to contain lubricating oil, a force-oiling device, including a reservoir above the casing, an engine shaft projecting into said casing, a lubricating oil container below said casing, and adapted to be supplied by gravity therefrom, an eccentric on said shaft, oiled by the lubricant in said casing, a pump attached'to said container, and adapted to deliver oil to said reservoir, driving elements extending from opposite sides of said eccentric and having operative connection with said forceoiling device and pump, and an oil conduit between said reservoir and said casing.

4. In an oiling system for an engine, a casing external to the crank case and adapted to contain lubricating oil, a pressure lubricator including an oil reservoir, disposed above said casing, and connected for gravity feed thereto, a power shaft projecting into said casing, a lubricating oil container supplied by gravity from said casing, an eccentric on said shaft, lubricated by the oil in said casing, a pump attached to said container,'for supplying oil to said reservoir, pump-operating rods connected to said lubricator and pump, and extending into said casing, and

connecting means between said eccentric and ach of said rods.

5. In a lubricating system for an engine, a casing adapted to contain mechanism to be lubricated, and a supply of oil, a shaft projecting into said casing, a lubricating oil container detachably connected to, and arranged to be supplied by gravity from said casing, a partition in said container forming a plurality of compartments therein, oil filtering means associated with said compartments, :1 pair of reciprocating pumps, each connected to a separate compartment of said container, for the circulation of filtered and pre-filtered oil respectively, a pump actuating rod extending through said casing and driven from said shaft, means connecting both of said pumps for actuation by said actuating rod, and oil conducting members associated with the discharge of one of said pumps and coactingtherewith to supply oil to said casing.

6. In a lubricating system for an internal combustion engine, a casing external to the crank case and adapted to contain engine accessory mechanism to be lubricated, and a supply of oil therefor, an engine shaft projecting into said casing, and adapted to actuate said mechanism, a lubricating oil container below said casing, arranged to be supplied by gravity therefrom, a partition in said container forming a clean oil compartment and a dirty oil compartment therein, an oil conduit extending from said casing, directly to said clean oil compartment, and pumps driven from said shaft, one thereof being connected with each of said compartments, the pump for said clean oil compartment being connected to supply oil to said casing.

7. In an oiling system for an internal combustion engine, a casing for engine accessory mechanism, external to the crank case and adapted to contain lubricating oil, for splash-oiling said mechanism, a lubricating oil container below said casing, an overflow conduit extending between the casing and container, a partition in said container forming a clean oil compartment and a dirty oil compartment therein, said overflow conduit being connected to the clean oil compartment. a plurality of pumps attached to said container, one of said pumps being connected to the clean oil compartment, means associated with said pump, adapted to supply clean oil to said casing, the other of said pumps being connected to the dirty oil compartment, and a reciprocating pump rod extending into the casing, for operating said pumps by mechanism in said casing.

8. In an internal combustion engine, a ca ing adapted to contain lubricating oil, a shaft projecting into said casing, a lubricating oil container below said casing, a force-feed lubricator above said casing, an oil overflow from said lubricator to said casing, and an oil overflow from said casing to said container, means actuated by said shaft, for pumping oil from said container to said lubricator, and means for operating said lubricator, operatively associated with said shaft-actuated means, said overflows being adapted'to' conduct the oil, by gravity, between the lubricator, casing and container.

9. In an internal combustion engine, a casing adapted to contain lubricating oil, a shaft projecting into said casing, a lubricating oil container below said casing, a force-feed lubricator above said casing, an oil overflow from said lubricator to said casing, and an oil overflow from said casing to said container, and means for pumping oil from said container to said lubricator, and means for operating said pumping means and lubricator by said shaft.

10. In a lubricating system for an internal combustion engine, a casing distinct from the crank case, adapted to contain lubricating oil, and to enclose engine accessory mechanism to be splash-lubricating, an engine shaft projecting into said casing, a lubricating oil container, connected to be supplied by gravity from said casing, a force-feed lubricator, adapted to supply the engine bearings, a pump attached to said container, for suplvin oil to said lubricator an overflow conduit from the lubricator, for supplying oil to said casing by gravity, and means asso-- ciated with said shaft for operating said pump and lubricator.

11. In an'internal combustion engine, an

oil circulating system including a casing adapted to contain oil, for use in splash lubrication, a shaft projecting into said casing, a lubricating oil container supplied by gravity from said casing, a force-feed lubricator above said casing, and connected thereto, an eccentric driven by said shaft, a rocker operated by the eccentric, a pump attached to said container, and adapted to supply oil to said lubricator, an overflow conduit extending from the lubricator to the casing, connecting means between said pump and said rocker, and connecting means between said rocker and said lubricator- 12. In an oil circulating system for an internal combustion engine, in combination with the crank case thereof, a drain to prevent the accumulation of oil therein, an adjustable outlet for said drain, an oil container including, in fluid connection, a used-oil compartment, a cleaned oil compartment, and filtering and settling means between the compartments; said used oil compartment being supplied from and connected below the drain outlet, an overflow conduit in the usedoil compartment, having its receiving opening disposed entirely below the crank case, drain, and-adapted to prevent return of oil therethrough, and keep said crank-case substantially free of oil; and means for continuously circulating, through said container, all of the oil in the system.

13. An oil circulating system for an internal combustion engine of crankcase type, including a force-oiling device adapted to supply engine bearings, a lubricating oil container, distinct from the crank-case of the engine, and having a clean oil compartment, and a double-chambered compartment therein, said chambers being adapted for dirty oil from the engine, and partially cleaned oil, respectively, a removable strainer in the course of oil flow between said chambers in said second named compartment, conduits between the crank-case and said dirty-oil chamber, a pump attached to said container and connected to one of said chambers in the dirty oil compartment, and arranged to cause a circulation of oil between the dirty and partially-cleaned oi] chambers, through said strainer, a second pump connected to the clean oil compartment and arranged to supply said force-oiling device, and combined operating means for said pumps and oiling device.

14. In an internal combustion engine of crank case type, an oil circulating system including a pressure feed device, for circulating oil within the. engine, a lubricating oil container having a clean oil compartment and a double-chambered compartment therein, a conduit between the engine and one of the chambers, adapted to deliver used oil to such chamber, the other chamber being adapted for partially-cleaned oil; a removable strainer in the course of flow between said chambers in said second named oompartment, a pump attached to said container and connected to one of said chambers, and adapted to circulate oil through said chambers of the second compartment, through said strainer, an overflow standpipe in the used oil chamber, arranged to prevent the used oil entering said conduit, and combined operating means for said pressure feed device and pump.

15. In an internal combustion engine, an oil circulating system including a force-feed lubricator adapted to circulate oil within the engine, an oil container detachably associated with the engine and having a clean oil compartment and a double-chambered compartment therein, a conduit connected to the first of said chambers and adapted to convey used oil from the engine, the second chamber adapted to receive partially-cleaned oil from the first chamber, a removable strainer in the course of flow between said chambers, a pump attached to said container and connected to one of said chambers in the second named compartment, and adapted to cause a circulation of oil through said chambers and compartments, and through the strainer, a second pump connected between said clean oil compartment and lubricator, and means for actuating said pump and lubricator.

16. In an internal combustion engine, a lubricating oil container having a clean oil compartment and a dirty oil compartment therein, a plurality of pumps having a common pump body attached to said container, one of said pumps being connected to the clean oil compartment, the other of said pumps being connected to the dirty oil compartment, a removable strainer in the pump body, between each of said pumps and the compartment connected therewith, a cross piece connecting the plungers of said pumps and a pump-operating rod connected to the cross-p1ece.

17. In an internal combustion engine, a lubricating oil container having a clean oil compartment and a dirty oil compartment therein, a plurality of pumps attached to said container, one of said pumps being connected to the clean oil compartment, the other of said pumps being connected to the dirty oil compartment, a cross-piece connecting the plungers of said pumps and a pumpoperating rod connected to the cross-piece and a leakage return to the dirty oil compartment from around the top of said plungers.

MORRIS J. GOLDBERG. 

